TWI646999B - Skateboard structure - Google Patents

Abstract

The invention relates to a skateboard structure, which includes a foamed core board, a top skin and a bottom skin. The top skin has a top surface, a bottom surface, and a periphery. The top surface of the top skin is used to carry a user. The bottom surface of the top skin covers and is bonded to the top surface and the periphery of the foam core board. The periphery does not exceed the bottom surface of the foamed core board. The bottom skin has a top surface, a bottom surface, and a periphery. The top surface of the bottom skin covers and is combined with the bottom surface of the foam core board and the periphery of the top skin. The bottom surface of the bottom skin is used for sliding on a sliding surface. In this way, the periphery of the top skin is covered by the bottom skin, so that the entire bottom surface of the skateboard for sliding does not have a joint formed by the top skin and the bottom skin, and the periphery of the top skin can be reduced or prevented from being rubbed by the sliding surface. The impact greatly reduces the probability of the top skin peeling from the foamed core board.

Description

Skateboard structure

The present invention relates to skateboards for sports and leisure or lifesaving, such as various surfboards, snowboards, grass boards, sandboards, lifeboards, etc., especially the joint structure between the top skin and the bottom skin of such skateboards.

A basic structure of a conventional skateboard, as shown in FIG. 7, includes a top skin 9, a core plate 8 and a bottom skin 7. The top skin 9 may be a single layer or multiple layers. As shown in FIG. 8, a common top skin 9 usually has two layers, one is a top foamed skin 90, and the other is a plastic film 91 printed with a pattern. The core plate 8 is made of a foamed material, such as an EPS foamed core plate. The bottom skin 7 can be a single layer or multiple layers. The common bottom skin 7 usually has two layers, one layer is a bottom foam skin 70, and the other layer is a plastic plate 71. The bottom foam skin 70 is thicker than the plastic plate 71, and the plastic plate 71 has A bottom surface 710 for taxiing. Wherein, the bottom skin 7 covers and is bonded to the bottom surface 80 of the core plate 8, but does not exceed the bottom surface 80, the top skin 9 covers and is bonded to the top surface 81 and the periphery 82 of the core plate 8, and covers the periphery 700 of the bottom skin 7, Therefore, a seam S is formed between the portion of the top skin 9 corresponding to the bottom skin 7 and the periphery 700 of the bottom skin 7, in other words, as shown in FIG. 9, the bottom surface of the conventional skateboard has a bottom skin 7 and a top The seam S formed by the skin 9 surrounds the bottom surface 710 of the bottom skin 7 and extends upward to the joint seam between the top skin 9 and the core plate 8.

While the skateboard is sliding on a taxiing surface (such as a water surface, a snow surface, a grass surface, or a sandy surface), in addition to the bottom surface 710 of the bottom surface 7 used for sliding, the peripheral surface 900 and the top surface 9 of the top surface 9 The seams S will also contact the sliding surface, and will therefore be subject to friction and impact from the materials that constitute the sliding surface. Later, the top skin 9 and the bottom skin 7 will be cracked from the joint S. Once this happens, not only water, sand, or other materials constituting the sliding surface will invade the core plate 8 from the crack, It will also allow the top skin 9 to gradually peel from the core board 8, and eventually there may be a large area peeling situation, which makes the entire skateboard unusable.

It can be seen that, for a long time, the top skin of the conventional skateboard has always been easy to crack and peel and needs to be solved urgently.

In view of the problem that the top skin of the conventional skateboard is prone to cracking and peeling, the present invention provides a new skateboard structure, which includes a foamed core board, a top skin and a bottom skin. The top skin has a top surface, a bottom surface, and a periphery. The top surface of the top skin is used to carry a user. The bottom surface of the top skin covers and is bonded to the top surface and the periphery of the foam core board. The periphery does not exceed the bottom surface of the foamed core board. The bottom skin has a top surface, a bottom surface, and a periphery. The top surface of the bottom skin covers and is combined with the bottom surface of the foam core board and the periphery of the top skin. The bottom surface of the bottom skin is used for sliding on a sliding surface. The periphery of the top skin of the present invention may be completely covered by the top surface of the bottom skin.

In one embodiment, the skateboard of the present invention further includes a sealing strip, and only a part of the periphery of the top skin is covered by the top surface of the bottom skin, and the remaining area forms a gap with the periphery of the bottom skin. The seal A strip is packed in the gap and is combined with the remaining area of the periphery of the top skin and the periphery of the bottom skin.

In one embodiment, the bottom skin may include a bottom foam skin and a plastic plate, and the bottom foam skin is interposed between the foam core plate and the plastic plate. Wherein, the thickness of the bottom foam skin may be smaller than the plastic plate. Between the membranes, In one embodiment, the top skin includes a foamed skin and a plastic film, and the top foamed skin is interposed between the foamed core board and the plastic. Wherein, the thickness of the bottom foamed skin may be smaller than the thickness of the top foamed skin, and the thickness of the top foamed skin may be larger than the plastic plate.

The invention also provides another skateboard structure, which includes a foamed core board, a top skin and a bottom skin. The foamed core board has a top surface, a bottom surface and a periphery. The top skin has a top surface and a bottom surface. The top surface of the top skin is used to carry a user. The bottom surface of the top skin covers and is bonded to the top surface of the foam core board and an upper area around the periphery. The bottom skin has a top surface and a bottom surface, the top surface of the bottom skin covers and is bonded to the bottom surface of the foamed core board and a lower area around the periphery, and the bottom skin and the top skin overlap on the periphery of the foamed core board . The bottom skin can be superposed on the top skin. In addition, the thickness of the top skin at the overlap can be made thinner than other parts, and the thickness of the bottom skin at the overlap can be made thinner than other parts.

In one embodiment, the top surface of the top skin of the other type of skateboard is covered with multiple concave and convex micro-concavities and multiple micro-convex portions, but a narrow band region of the top surface near the overlap is smooth.

In another embodiment, the bottom skin of the other skateboard includes a bottom foam skin and a plastic plate, the bottom foam skin is interposed between the foam core plate and the plastic plate, and the bottom foam skin Is less than the thickness of the plastic plate. Wherein, the top skin may further include a top foam skin and a plastic film, the top foam skin is interposed between the foam core board and the plastic film, wherein the thickness of the bottom foam skin is smaller than the top hair Foam skin, the thickness of the top foam skin is larger than the plastic plate.

Compared with the prior art, since the bottom skin of the present invention exceeds the bottom surface of the foam core board and covers the periphery of the top skin, the bottom surface for sliding of the skateboard of the present invention does not have a joint formed by the top skin and the bottom skin, which can be solved. The problem that the top skin of the skateboard is cracked from the seam can also reduce or avoid the friction and impact of the top skin from the sliding surface, and greatly reduce the probability of the top skin peeling from the foam core board.

1‧‧‧foamed core board

10‧‧‧Top

11‧‧‧ underside

12‧‧‧ around

121‧‧‧upper area

122‧‧‧ Lower area

2, 2a‧‧‧ top skin

20a‧‧‧Main Skin

20b‧‧‧Side

200‧‧‧Top

201‧‧‧ underside

Around 202‧‧‧

202a‧‧‧partial area

202b‧‧‧Remaining area

21‧‧‧Top Foam Leather

22‧‧‧plastic film

3‧‧‧ bottom

3a‧‧‧Seal

300‧‧‧ Top

301‧‧‧ underside

302‧‧‧periphery

31‧‧‧bottom foam

32‧‧‧plastic plate

7‧‧‧ bottom

70‧‧‧ bottom foam

71‧‧‧plastic plate

Around 700‧‧‧

8‧‧‧ core board

80‧‧‧ underside

81‧‧‧Top

82‧‧‧periphery

9‧‧‧ top skin

90‧‧‧Top Foam Leather

91‧‧‧plastic film

900‧‧‧ around

S‧‧‧Seam

FIG. 1 is a schematic cross-sectional view of a first embodiment of a skateboard according to the present invention.

FIG. 2 is a schematic partial cross-sectional view of a first embodiment of a skateboard according to the present invention.

FIG. 3 is a schematic bottom view of a first embodiment of a skateboard according to the present invention.

FIG. 4 is a schematic partial cross-sectional view of a second embodiment of a skateboard according to the present invention.

5 is a schematic partial cross-sectional view of a third embodiment of a skateboard according to the present invention.

6 is a schematic partial cross-sectional view of a fourth embodiment of a skateboard according to the present invention.

FIG. 7 is a schematic cross-sectional view of a conventional skateboard.

8 is a schematic cross-sectional view of a part of a conventional skateboard.

FIG. 9 is a schematic bottom view of a conventional skateboard.

FIG. 1 shows a first embodiment of the skateboard of the present invention. The skateboard may be a board for sports and leisure, such as various surfboards, snowboards, grass boards, sand boards, etc., or a life-saving floating board, Skateboards, buoys ... and so on.

As shown in FIG. 1, the skateboard of the present invention includes a foamed core board 1, a top skin 2 and a bottom skin 3. The foam core board 1 has a top surface 10, a bottom surface 11, and a periphery 12 connecting the bottom top surface 10 and the bottom surface 11. The expanded core board 1 is made of plastic expanded material, such as expanded polystyrene (EPS), expanded polyethylene (EPE), expanded polypropylene (EPP), expanded styrene-ethylene mixture ( Copolymerized with styrene and polyethylene and foamed after bridging treatment), etc., can be single or multiple layers. Both the top skin 2 and the bottom skin 3 are made of plastic material, and the thickness is thinner than that of the foam core plate 1, and may be single or multiple layers, respectively.

As shown in Figs. 1 and 2, the top skin 2 has a top surface 200, a bottom surface 201, and a periphery 202 connecting the top surface 200 and the bottom surface 201. The top surface 200 of the top skin 2 is used to carry a user, and the top skin 2 The bottom surface 201 covers and is bonded to the top surface 10 and the periphery 12 of the foamed core board 1, and the periphery 202 of the top skin 2 does not exceed the bottom surface 11 of the foamed core board 1. In this embodiment, the top skin 2 includes a top foamed skin 21 and a plastic film 22. The top foam skin 21 is interposed between the plastic film 22 and the foam core board 1, and is made of a plastic foam material, such as expanded polyethylene (EPE), expanded polypropylene (EPP), etc., with a thickness of about 2 ~ 4mm. The plastic film 22 may be made of polyethylene, which is a non-foamed plastic film with a thickness of about 0.1 to 0.2 mm and may have a printed pattern.

The bottom skin 3 has a top surface 300, a bottom surface 301, and a connecting top surface 300 And a periphery 302 of the bottom surface 301. The top surface 300 of the bottom skin 3 covers and is bonded to the bottom surface 11 of the foamed core board 1 and the periphery 202 of the top skin 2. The bottom surface 301 of the bottom skin 3 is used for taxiing on a sliding surface (such as a water surface, a snow surface, a grass surface, or a sand surface). In this embodiment, the bottom skin 3 includes a bottom foamed skin 31 and a plastic plate 32. The bottom foam skin 31 is interposed between the plastic plate 32 and the foam core plate 1, and is made of a plastic foam material, such as expanded polyethylene (EPE), expanded polypropylene (EPP), etc. The plastic plate 32 can be made of polyethylene. It is a non-foamed plastic plate with a thickness of about 0.6 to 0.8 mm and can have a printed pattern. The texture is harder and more abrasion-resistant than the bottom foamed skin 31, so it can be used for sliding on the sliding surface. In addition, the thickness of the plastic plate 32 is greater than the thickness of the plastic film 22, but smaller than the thickness of the top foamed skin 21.

Since the bottom skin 3 extends beyond the bottom surface 11 of the foam core board 1 and covers the periphery 202 of the top skin 2, as shown in FIG. 3, the bottom surface of the skateboard of the present invention does not have any seams. This means that when the skateboard of the present invention slides on the sliding surface, no seam will contact the sliding surface, so the top skin 2 does not appear to crack the top skin 9 of the conventional skateboard from the seam S, of course, it does not. Easily peeled from the foam core sheet 1. In this embodiment, the bottom skin 3 completely covers the periphery 202 of the top skin 2. Therefore, when the skateboard of the present invention glides on the sliding surface, the periphery 202 of the top skin 2 will not contact the sliding surface, and the top skin can be avoided. The periphery 202 of 2 is exposed to the friction and impact of the sliding surface due to exposure, and the probability of the top skin 2 peeling off from the foam core board 1 is greatly reduced.

In addition, when the bottom skin 3 is not yet bonded to the foamed core board 1, the thickness of the bottom foamed skin 31 is approximately equivalent to the thickness of the top foamed skin 21. However, after the bottom skin 3 is bonded to the foamed core board 1, it is applied at the time of bonding. Due to the pressure, the bottom foam skin 31 is pressed very thinly, only about 0.3 to 0.5 mm, so that the thickness of the bottom foam skin 31 is not only smaller than the thickness of the top foam skin 21, but even smaller than the thickness of the plastic plate 32. Therefore, when viewed from the side, the foamed skin 31 is hardly visible at the bottom.

FIG. 4 shows a second embodiment of the skateboard of the present invention, which is substantially the same as the above embodiment, except that the bottom skin 3 in this second embodiment covers only a part of the area 202a of the periphery 202 of the top skin 2 So that a gap is formed between the periphery 302 of the bottom skin 3 and the remaining area 202b of the periphery 202 of the top skin 2 and the gap is coated and filled with a strong and waterproof sealing material such as epoxy resin, which Sealing material After curing, a sealing strip 3a tightly combined in the gap is formed. In this way, the sealing strip 3a completely covers the periphery 302 of the bottom skin 2 and the periphery 202 of the top skin 2, so that the top foam skin 21 and the bottom foam skin 31 are not exposed at all.

FIG. 5 shows a third embodiment of the skateboard of the present invention, which is substantially the same as the above embodiment, except that the top skin 2a in the third embodiment is not a single piece, but is composed of multiple pieces of leather. In this third embodiment, the top skin 2a includes a main skin 20a and at least one side skin 20b. The main skin 20a is substantially the same as the top skin 20 in the above embodiment, except that the main skin 20a covers an upper region 121 covering the periphery 12 of the foam core board 1, while the side skin 20b covers and joins the periphery 12 A lower area 122. Wherein, the side skin 20b is made of a plastic material, which may be a single layer or multiple layers. In this third embodiment, the side skin 20b is a single layer and made of a plastic foam material, such as expanded polyethylene (EPE), Expanded polypropylene (EPP) ... etc. In this third embodiment, by covering the bottom skin 3, the bottom surface of the entire skateboard is the same as the above embodiment without any seams, so the top skin 2a does not crack the top skin 9 of the conventional skateboard from the seams S. Situation. The perimeter 202 of the top skin 2a is also completely covered by the bottom skin 3, which can prevent the perimeter 202 of the top skin 2a from being exposed to friction and impact from the sliding surface, which greatly reduces the probability of the top skin 2a peeling from the foamed core board 1. .

FIG. 6 shows a fourth embodiment of the skateboard of the present invention, which is substantially the same as the above embodiment, except that the top skin 2 in the fourth embodiment covers the upper region 121 of the periphery 12 of the foam core board 1 The bottom skin 3 covers the lower area 122 of the periphery 12 of the foamed core board 1 and is superposed on the top skin 2. In addition, the top skin 2 can also be superposed on the bottom skin 3, in short, the bottom skin 3 and the top skin 2 overlap the periphery 12 of the foam core board 1. In this way, there is no seam on the bottom surface of the entire skateboard, so the top skin 2 of the conventional skateboard does not split from the seam S. The perimeter 202 of the top skin 2 is also completely covered by the bottom skin 3, which can prevent the perimeter 202 of the top skin 2 from being exposed to friction and impact from the sliding surface, which greatly reduces the probability of the top skin 2 peeling from the foamed core board 1. .

As shown in FIG. 6 again, the thickness of the top skin 2 at this overlap is thinner than other parts, and the thickness of the bottom skin 3 at the overlap is also thinner than other parts. In addition, the top surface of the top skin 2 is covered with multiple concave and convex micro concave portions and multiple convex portions (not shown), but this A narrow band region of the top surface of the top skin 2 near the overlap is smooth.

In summary, the top skin of the skateboard of the present invention covers the top surface and periphery of the foam core board, and does not exceed the bottom surface of the foam core board, and the bottom skin covers the bottom surface of the foam core board. And covers the periphery of the top skin beyond the bottom surface, which makes the bottom surface of the skateboard of the present invention free of the joint formed by the top skin and the bottom skin, which can solve the problem that the top skin 9 of the conventional skateboard is cracked from the seam S. problem. In addition, the periphery of the top skin of the skateboard of the present invention is shielded by the bottom skin, which can reduce or avoid the friction and impact of the periphery of the top skin from the sliding surface, and greatly reduce the probability of the top skin peeling from the foamed core board.

Claims (13)

A skateboard structure includes: a foamed core board having a top surface, a bottom surface, and a periphery; a top skin having a top surface, a bottom surface, and a periphery, and the top surface of the top skin is used to carry a user A bottom surface of the top skin covers and is bonded to the top surface and periphery of the foamed core board, and the periphery of the top skin does not exceed the bottom surface of the foamed core board; and a bottom skin having a top surface, a bottom surface, and A periphery. The top surface of the bottom skin covers and is bonded to the bottom surface of the foamed core board and the periphery of the top skin. The bottom surface of the bottom skin is used for sliding on a sliding surface. The skateboard structure according to item 1 of the scope of patent application, wherein the periphery of the top skin is completely covered by the top surface of the bottom skin. For example, the skateboard structure described in the first patent application scope further includes a sealing strip. Only a part of the periphery of the top skin is covered by the top surface of the bottom skin, and the remaining area forms a gap with the periphery of the bottom skin. The sealing strip is packed in the gap and combined with the remaining area of the periphery of the top skin and the periphery of the bottom skin. The skateboard structure according to any one of claims 1 to 3, wherein the bottom skin comprises a bottom foam skin and a plastic plate, and the bottom foam skin is interposed between the foam core plate and the plastic plate . The skateboard structure described in item 4 of the scope of patent application, wherein the thickness of the bottom foam skin is smaller than the plastic plate. According to the skateboard structure described in item 5 of the patent application scope, wherein the top skin includes a foamed skin and a plastic film, the top foamed skin is interposed between the foamed core board and the plastic film, and the top skin The thickness of the foam skin is larger than the plastic plate. According to the skateboard structure described in item 4 of the scope of patent application, wherein the top skin comprises a foamed skin and a plastic film, the top foamed skin is interposed between the foamed core board and the plastic film. A skateboard structure includes: a foamed core plate having a top surface, a bottom surface, and a periphery; a top skin having a top surface and a bottom surface, the top surface of the top skin is used to carry a user, and the top The bottom surface of the skin covers and is bonded to the top surface of the foamed core board and an upper area around the periphery; and a bottom skin having a top surface and a bottom surface, the top surface of the bottom skin covers and is bonded to the foamed core board The bottom surface and a lower area of the periphery, and the bottom skin and the top skin overlap on the periphery of the foam core board. The skateboard structure according to item 8 of the application, wherein the bottom skin is superposed on the top skin. According to the skateboard structure described in item 8 of the scope of the patent application, the thickness of the top skin at the overlap is thinner than other parts, and the thickness of the bottom skin at the overlap is also thinner than other parts. According to the skateboard structure described in item 8 of the scope of patent application, wherein the top surface of the top skin is covered with a plurality of uneven micro-concavities and multiple micro-convex portions, but a narrow band region of the top surface near the overlap is Smooth. The skateboard structure according to any one of claims 8 to 11, wherein the bottom skin includes a bottom foam skin and a plastic plate, and the bottom foam skin is interposed between the foam core plate and the plastic plate. The thickness of the bottom foam skin is smaller than the plastic plate. The skateboard structure according to item 12 of the application, wherein the top skin includes a foamed skin and a plastic film, the top foamed skin is interposed between the foamed core board and the plastic film, and the top skin The thickness of the foam skin is larger than the plastic plate.